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Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

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Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

Atsushi Sato, MD, PhD, JAPAN Jun Oike, MD,PhD, JAPAN Masataka Ota, MD, JAPAN Kanako Izukashi, MD, JAPAN Saki Yagura, MD, JAPAN Takayuki Okumo, MD, PhD, JAPAN Naoki Okuma, MD, JAPAN Takayuki Koya, MD, PhD, UNITED STATES Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN

Department of Orthopedic Surgery, Showa University Koto Toyosu Hospital, Koto-ku, Tokyo, JAPAN

2023 Congress ePoster Presentation 2023 Congress Not yet rated

Anatomic Location

Knee

Anatomic Structure

Bones

Diagnosis / Condition

Osteoarthritis

Treatment / Technique

Arthroplasty

Patient Populations

Elderly

Diagnosis Method

CT-Scan

Sports Medicine

Basic Science Biomechanics Research

Summary: Distal Femoral Valgus Angle using whole leg 3D-CT varies in each patient in Total Knee Arthroplasty

Introduction

Proper implant positioning is important to get suitable leg alignment in total knee arthroplasty (TKA). However, the three-dimensional evaluation of accurate lower limb alignment is still controversial.

Purpose

Therefore, we performed a three-dimensional evaluation of the distal femoral valgus angle (DFVA) using full-leg CT before TKA.

Methods

Consecutive 296 patients (169 females, 48 males, mean age: 75.4 y.o), yielded 296 knees were included in this study. CT-based patient-specific 3D femur model by ZedKnee software (LEXI) was used to define a mechanical axis and distal anatomical axis of the femur. The case where the angle deviates from the DFVA by ± 3 ° was defined as the outlier, and the ratio of the outlier was evaluated.

Results

The average DFVA was 6.2 ± 2.2 °, of which outliers were found in 53 knees (17.9%). Of the outliers, 22 (7.6%) had DFVA less than 3 ° and 31 (10.5%) had greater than 9 °.

Conclusion

It should be noted that the same cutting angle for performing the distal femoral bone cut in TKA may lead to improper placement of the femoral component.

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Use of Tibial Stem for Patients with Morbid Obesity in Total Knee Arthroplasty ePoster Presentation José Eduardo Flores Naranjo, MD, MEXICO Adrian Aziz Cortes De La Fuente, MD, MEXICO Octavio Martinez Montiel, MD, MEXICO Fernando Martinez Zuñiga, MD, MEXICO
Relationship Between The Femoral And Tibial Component Positions And Postoperative Knee Range Of Motion After Posterior-Stabilized Total Knee Arthroplasty ePoster Presentation Mitsuru Hanada, MD, PhD, JAPAN Yukihiro Matsuyama, MD, PhD, Prof., JAPAN
Antibiotic-Loaded Bone Cement with Colistin at Erythromycin Do Not Decrease Chronic TKA Pji at a Long-Term ePoster Presentation Daniel Pérez-Prieto, MD, SPAIN Albert Fontanellas, MD, SPAIN Pedro Hinarejos-Gomez, MD, PhD, SPAIN Juan Francisco Sanchez-Soler, MD, PhD, SPAIN Raúl Torres-Claramunt, PhD, SPAIN Joan Carles Monllau, MD, PhD, Prof., SPAIN
Palliative Arthroscopic Debridement with Continuous Irrigation for the Infection TKA of High Mortality Risk Patients ePoster Presentation Yoon Sang Jeon, MD, KOREA, REPUBLIC OF Sung-Sahn Lee, MD., PhD., KOREA, REPUBLIC OF Yoon Cheol Nam, MD, KOREA, REPUBLIC OF Dong Jin Ryu, MD, PhD., KOREA, REPUBLIC OF
Short Term Outcome of Tibial Defect Reconstruction In Primary Total Knee Arthroplasty: A Retrospective Study ePoster Presentation Sanjib Kumar Behera, MS (Orth), DNB (Rehab), DPMR, INDIA Madhumita Pradhan, BDS, MPH, MHA , INDIA Vikram Choudhary, MD, UNITED STATES
Association Between The Femoral And Tibial Component Positions and Intraoperative Knee Kinematics In Posterior-Stabilized Total Knee Arthroplasty ePoster Presentation Mitsuru Hanada, MD, PhD, JAPAN Yukihiro Matsuyama, MD, PhD, Prof., JAPAN
Total Knee Arthroplasty Outcomes Following Anterior Cruciate Ligament Reconstruction ePoster Presentation Brian Rao, BS, UNITED STATES Alex C. Dibartola, MD, MPH, UNITED STATES Eric Milliron, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES James C. Kirven, BS, UNITED STATES Spencer E. Talentino, MD, UNITED STATES Charles Qin, MD, UNITED STATES Ryan H. Barnes, MD, UNITED STATES Robert A. Duerr, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES David C. Flanigan, MD, UNITED STATES
Tibial Morphology for Proper Adjustment of Metal Augmentation in Revision Total Knee Arthroplasty ePoster Presentation Yushi Sakamoto, MD, JAPAN Shinichiro Nakamura, MD, PhD, JAPAN Yugo Morita, MD, JAPAN Shinichi Kuriyama, MD, PhD, JAPAN Kohei Nishitani, MD, PhD, JAPAN Young Dong Song, MD, PhD, UNITED STATES Yusuke Yamawaki, MD, JAPAN Shuichi Matsuda, MD, PhD, JAPAN
The Functional Outcome of Zimmer Biomet’s Nexgen Total Knee Arthroplasty as Compared with Healthy Older Adults ePoster Presentation Gwenllian F. Tawy, PhD, MRes, BSc(Hons), UNITED KINGDOM Michael J. McNicholas, BSc, MD, FRCS Tr & Orth, UNITED KINGDOM Leela C. Biant, MS, MFSTEd, FRCSEd(Tr&Orth), UNITED KINGDOM

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Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

Introduction

Purpose

Methods

Results

Conclusion

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Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty

Introduction

Purpose

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content